Where can i buy Liquid Nitrogen in DFW?
TECH Addict
Joined: Feb 2002
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From: Lewisville, Texas
You don't want liquid nitrogen you want nitrogen gas 2 different things. Liquid nitrogen is used to super cool things, they put nitrogen gas in tractor tires because it doesn't freeze like air, very little moisture.
Originally Posted by ckyconan2003
nitrogen would be a bad idea since it does weigh more than air. so when at a stop all that air is at the bottom of the tire, this would more than likely reduce performance than improve it.
air = MM of 28.97 kg/kmol at sea level \
nitrogen = MM of 28.0 kg/kmol
Last edited by SiL3NtXWS6; Aug 15, 2007 at 08:26 AM.
nitrogen in a gaseous form is used in aircraft tires, for 1. since the molecules are larger the pressure doesn't bleed down as quickly as air, 2. no moisture (water vapor) in nitrogen to freeze at altitude or corrode/errode the metal and rubber parts. nitrogen in liquid form is usually used to supercool parts to shrink them, like installing bearing and bushing. it's also used in cryo-treating of parts after heat treating, but you're going to have to do your own research on that. nitrogen once mixed with another gas will not seperate into layers, ex. check the air outside.
TECH Addict
Joined: Feb 2002
Posts: 2,319
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From: Lewisville, Texas
Take a seal-a-meal bag put some liquid nitrogen in it seal the opening and throw it under your buddies tool box, stand back and watch him jump, lol. Take a 2ltr plastic bottle put a rubber stopper in the opening with a hole in the stopper for a tube to fit in the hole, fill it 1/4 way up with water, pour some liquid nitrogen it and air it up with an air chuck, takes off like a rocket.
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You can buy liquid nitrogen from most welding shops in different size insulated bottles. I use it as a shielding gas for welding sometimes. It very easy to get in California. Try Airgas, Praxair Linde or any mom and pop welding supply stores. If they don't have the bottle size you need, you can buy any size specified rated liquid nitrogen bottle online and take your bottle local weld shop and they should fill it for you for a small fee. The bottle is whats going to cost most.
